/Engine/Source/Editor/UnrealEd/Public/Kismet2/BlueprintEditorUtils.h
Replaces all variable references in the specified blueprint
static void ReplaceVariableReferences ( [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * Blueprint, const [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * OldVariable, const [FProperty](API\Runtime\CoreUObject\UObject\FProperty) * NewVariable )